1 #include "gdcmHeader.h"
5 #include "gdcmDataImages.h"
7 int main(int argc, char* argv[])
11 std::cerr << "Test::TestReadWriteReadCompare: Usage: " << argv[0]
12 << " fileToCheck.dcm " << std::endl;
15 std::cout<< "Test::TestReadWriteReadCompare: description " << std::endl;
16 std::cout << " For all images in gdcmData (and not blacklisted in "
17 "Test/CMakeLists.txt)" << std::endl;
18 std::cout << " apply the following multistep test: " << std::endl;
19 std::cout << " step 1: parse the image (as gdcmHeader) and call"
20 << " IsReadable(). " << std::endl;
21 std::cout << " step 2: write the corresponding image in DICOM V3 "
22 << "with explicit" << std::endl
23 << " Value Representation in temporary file "
24 << "TestReadWriteReadCompare.dcm." << std::endl;
25 std::cout << " step 3: read the image written on step2 and call "
26 << " IsReadable(). " << std::endl;
27 std::cout << " step 4: compare (in memory with memcmp) that the two "
28 << "images " << std::endl
29 << " match (as expanded by gdcm)." << std::endl;
32 //while( gdcmDataImages[i] != 0 )
34 std::string filename = GDCM_DATA_ROOT;
36 //filename += gdcmDataImages[i++];
39 std::cout << " Testing: " << filename << std::endl;
41 //////////////// Step 1 (see above description):
43 gdcmHeader *header = new gdcmHeader( filename );
44 if( !header->IsReadable() )
46 std::cerr << "Test::TestReadWriteReadCompare: Image not gdcm compatible:"
47 << filename << std::endl;
51 std::cout << " step 1 ...";
53 //////////////// Step 2:
55 gdcmFile* file = new gdcmFile( header );
56 int dataSize = file->GetImageDataSize();
57 uint8_t* imageData = file->GetImageData(); //EXTREMELY IMPORTANT
58 // Sure, it is : It's up to the user to decide if he wants to
59 // GetImageData or if he wants to GetImageDataRaw
60 // (even if we do it by setting a flag, he will have to decide)
62 /// \todo Following line commented out because gdcmFile::SetImageData() is
63 /// brain dead: it sets ImageDataSize to its argument and PixelRead to a.
64 /// Later on, when writing gdcmFile::WriteBase()
65 /// and because PixelRead == 1 we call
66 /// PixelElement->SetLength( ImageDataSizeRaw );
67 /// where we use ImageDataSizeRAW instead of ImageDataSize !
68 /// But when the original image made the transformation LUT -> RGB,
69 /// ImageDataSizeRaw is the third of ImageDataSize, and there is no
70 /// reason (since we called gdcmFile::SetImageData) to use the Raw image
71 /// size... This "bug" in gdcmFile made that we had to black list
72 /// images 8BitsUncompressedColor.dcm, OT-PAL-8-face.dcm and
73 /// US-PAL-8-10x-echo.dcm...
74 /// In conclusion fix gdcmFile, and then uncomment the following line.
76 // --> I did. ctest doesn't break. But ... is it enought to say it's OK ?
78 file->SetImageData(imageData, dataSize);
80 file->WriteDcmExplVR( "TestReadWriteReadCompare.dcm" );
83 //////////////// Step 3:
85 gdcmFile* reread = new gdcmFile( "TestReadWriteReadCompare.dcm" );
86 if( !reread->GetHeader()->IsReadable() )
88 std::cerr << "Test::TestReadWriteReadCompare: Could not reread image "
89 << "written:" << filename << std::endl;
97 int dataSizeWritten = reread->GetImageDataSize();
98 void* imageDataWritten = reread->GetImageData();
100 //////////////// Step 4:
102 if (dataSize != dataSizeWritten)
104 std::cout << std::endl
105 << " Pixel areas lengths differ: "
106 << dataSize << " # " << dataSizeWritten << std::endl;
107 delete (char*)imageData;
108 delete (char*)imageDataWritten;
115 if (int res = memcmp(imageData, imageDataWritten, dataSize) !=0)
118 std::cout << std::endl
119 << " Pixel differ (as expanded in memory)." << std::endl;
120 delete (char*)imageData;
121 delete (char*)imageDataWritten;
127 std::cout << "4...OK." << std::endl ;
129 //////////////// Clean up:
130 delete (char*)imageData;
131 delete (char*)imageDataWritten;